mathisfun14 mathisfun14

01-10-2017
Mathematics

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Given the function f(x)=x2+2x+1, find: f(2b)

Given the function f(x)=x2+2x+1, find: f( 2a−3/5 )

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harpazo harpazo

01-10-2017

I will do the first one only. The second question is done the same way.

Replace every x you see in the function with 2b and do the math.

f(x) = x^2 + 2x + 1

Let x = 2b

f(2b) = (2b)^2 + 2(2b) + 1

f(2b) = 4b^2 + 4b + 1

Did you follow? That's all there is to it.

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